The Watchdog Water Alarm (BW-HWA)
A sump pump fails in a storm, when the power is out. This needs no power and no hub: the sensor goes on a wire down to the rim of the pit, and the alarm is loud enough to hear upstairs.
By Glentronics (The Basement Watchdog). Specs read from the maker on .
Price and stock: Basement Watchdog product page (where to buy)
| Sounds at | 1/32 inch of water |
|---|---|
| Alarm | 110 dB |
| Sensor wire | 6 feet attached, can be spliced out to 100 feet |
| Power | One 9-volt battery; draws power only while sounding, per the maker |
| Size | 5.25 x 3.25 x 1.5 inches |
| Warranty | 5 years, parts and labor |
| Hub connection | Not stated by the maker |
"Not stated by the maker" means the maker's pages do not say; this shelf leaves it blank rather than guess.
Know before you buy
It sounds; it does not send. Nobody hears it in an empty house, so pair it with a hub-connected sensor where that matters. The maker's page writes the model as both BW-HWA and BWD-HWA; the manual and warranty say BW-HWA.
Where each spec was read
- Basement Watchdog: The Watchdog Water Alarm product page read 2026-10-27
- Basement Watchdog: High Water Alarm (BW-HWA) manual read 2026-10-27
- Basement Watchdog: BW-HWA limited warranty read 2026-10-27
Read first
- Sump pumps, backups and the pit sensorA sump pump fails when you need it most: in a storm, when the power is out. How to test it, why a battery backup matters, and where the sensor goes.
- Where leak sensors goThe 8 places water starts inside a house, and where a sensor sits at each one so it reads wet early.
Every link on this site is a plain link to the maker's own page. The site earns nothing from them today; if that changes, this note will name the program on every page. No maker pays for placement.
Notes drafted with a language model from the maker's pages above and checked against them. Product information, not plumbing or electrical advice: a licensed plumber and your local code decide what is safe in your house.
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